I endorse all these, and also all of roryokane’s that you haven’t taken issue with, except that to me “bright” doesn’t just mean high notes but also notes whose timbre includes a lot of energy at high frequencies. Also, “soft” is ambiguous between something like Rory’s meaning and simply “quiet”. (It maybe also suggests to me the opposite of “bright”.)
I endorse all these, and also all of roryokane’s that you haven’t taken issue with, except that to me “bright” doesn’t just mean high notes but also notes whose timbre includes a lot of energy at high frequencies. Also, “soft” is ambiguous between something like Rory’s meaning and simply “quiet”. (It maybe also suggests to me the opposite of “bright”.)